The link between sexuality and music--particularly pop music--goes back much further than "Samantha Fox, Aguilera and other pop tarts of yesteryear." People gasped when Elvis Presley swung his hips, remember.

Did he bend over and soap up his hairy ass and then pump it up and down like a common pole dancer while eating a fried peanut butter and jelly sandwich?
There's a world of difference between true sexual charisma and magnetism that can't really be put into words be it Marilyn Monroe, Elvis Presley or even Mick Jagger and contemporary attempts to fit most of these female pop stars into the same sexually exploitative role, be it Spear's little school girl outfit, Aguilera's sexually suggestive lyrics and skimpy outfits, Perry's breasts, whatever the fuck appeal Rihanna may have to some, or now Gaga wiggling her ass. Sure, it's been there to a degree for a long time but never to this extent-back in the day Sheena Easton and Olivia Newton John were considered tremendous sex symbols-did they ever promote their pussies to this degree?
Past a certain point is anyone even listening to the music with such overt sexual visuals or is it incidental? The common theme today is flashy sexually enticing imagery to cover up lack of originality and/or talent.